Heating system



E. EDSEN.

HEATING SYSTEM.

APPLICATION FILED FEB. 4, IQIB. IIENEwED MAY I3. 1920.

1 345, 49 Patented June 29, 1920.

EDEMm/cntor UNITED STATI-:s

EIWARD EDSEN, OF MILWAUKEE, WISCONSIN.

HEATING SYSTEM.

Specification of Letters Patent. .Patentd Jung 29,

Application led February 4, 1918, Serial No. 215,315. Renewed May 13, 1920. Serial No. 381,194;

fo all 'whom mag/concern.' l

Be it known that I, EDWARD EDsnN, a citizen of the United States of America, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Heating Systems, of which the following is a specification, reference being had therein to the accompan ing drawing.

The invention re ates to a heating system, and has for its object the provision of a system in which the return water from the radiators is reheated and introduced into the upper portion or steam space of the boiler so as to merely return to the radiators.

It is an object of the invention to provide a heating systeml which is distinguished by its rapid circulation upon starting of the furnace.

A further object is to increase the heating effect without the employment of additional fuel.

With these and other objects in view, the invention consists of the parts hereinafter described and particularly pointed out in the appended claim and illustrated in the annexed drawing, in which- The figure illustrates a sectional elevation in perspective of a building in which the heating system constructedy in accordance with my invention has been applied.

Referring to the drawing, 1 designates a furnace which in the given instance may be utilized for hot water or steam heating. The

furnace comprises an outer casing 2, which'.

may be made of galvanized iron or any other preferred or suitable material, and an inner shell 3, spaced therefrom toprovide a water chamber in which the water to be heated isstored. rlhe furnace 1 is in communication with a header 4, arranged thereabove and equipped with a riser 5, which is connected by a fitting 6 to a horizontal pipe 7, connected to the various heating elements, such as radiators 8, in the well known manner by the interposition of fittings and' valves, the return side of the radiators 8 communicating with the return pipes 9.

The pipes 9 and 10 are connected to the return side of the radiators. At its lower end the pipe 9 is connected to a pipe 11, equipped with a check valve 12 and with a T-itting 13, whence two pipes 14, 15 lead respectively to a header 16, communicating with the water chamber of the furnace, and to a pipe coil 17, provided inthe lire chainber of the furnace, for a purpose presently to be described. The pipe coil 17 is clearly indicated in the ldrawing and comprises a plurality of convolutions which conform to the contour of the inner wall of the furnace and are supported thereon. This pipe coil is arranged in proximity to the grate of the furnace and above the same, so as to be exposed to intensive heat, without, however, preventing manipulation of the grate for the purpose of cleaning the same and without interfering with the escape of the products of combustion. The other end 18 of the pipe coil l`eads, by means of a pipe 19, to.

the header 4 of the furnace, there being a check valve 20 interposed to prevent back flow of the fluid.

The function and utility of the improved heating system are thought to be obvious. Steam generated in the upper portionsof the furnace in the water chamber escapes through the pipe 5,' and is conducted into the various radiators 8, where, by reason of the prevailing low temperature, the steam condenses. The condensed water yreturns through the pipes 9 and l10 and Hows through the pipe 15, constituting a bleeder, into the pipe coil, where, owing to the intense heat, the water is evaporated and the steam thus formed escapes through the pipes 18 and 19 and past the checkvalve 20 into the top portion of the water chamber.

From the foregoing it is obvious that due to the rapid `conversion of the return water into steam an accelerated circulation of the steam is obtained, thereby insuring a greater efficiency of the heating system without necessitating increased use of fuel or other expenditures with the exception of installation of the pipe coil and its associated parts.

A part of the return water is conducted to the pipe 14, into the lower portionof the water chamber, and thus takes its natural course.

The drawing and specification set forth an embodiment of the invention which, however, is merely indicative of the principle of the invention. A great many changes and alterations may be made within a wide range, and therefore I do not limit myself except Y to the extent set out by my claim.

I claim:

In a combination with a hot water system, a furnacehaving a water chamber and a fire chamber, headers respectively connected to the bottom and top portion of said water 2 Y Y Y 1,345,149

chamber', a pipe coil arranged withinvthe fire chamber', means for Vestablishing communication between the'` pipe coil and the top header, a horizontal pipe section positioned in the return pipe of said heating system, said horizontal section positioned on `a level vhigher than the discharge end'of the return side of said heating system, and

a bleeder attached to said Vhorizontal section and connected at its opposite end to said 10 pipercoil whereby communication between said pipe coil and the return side of the heating system is established- In testimony whereof l hereunto affix my signature.

`EDWARD EDSEN. 

